CN103718399A - Spark plug - Google Patents
Spark plug Download PDFInfo
- Publication number
- CN103718399A CN103718399A CN201280038686.2A CN201280038686A CN103718399A CN 103718399 A CN103718399 A CN 103718399A CN 201280038686 A CN201280038686 A CN 201280038686A CN 103718399 A CN103718399 A CN 103718399A
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- CN
- China
- Prior art keywords
- grounding electrode
- spark plug
- electrode
- housing
- axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 24
- 239000012212 insulator Substances 0.000 claims abstract description 4
- 238000005452 bending Methods 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 229910000990 Ni alloy Inorganic materials 0.000 description 4
- 229910000510 noble metal Inorganic materials 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000007772 electrode material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000000241 respiratory effect Effects 0.000 description 2
- 230000008646 thermal stress Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
- H01T13/32—Sparking plugs characterised by features of the electrodes or insulation characterised by features of the earthed electrode
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/46—Sparking plugs having two or more spark gaps
- H01T13/467—Sparking plugs having two or more spark gaps in parallel connection
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T13/00—Sparking plugs
- H01T13/20—Sparking plugs characterised by features of the electrodes or insulation
Landscapes
- Spark Plugs (AREA)
Abstract
The present invention relates to a spark plug (1) comprising a housing (2) as the earth contact to an internal combustion engine, a centre electrode (3) which is arranged in the housing (2) along a centre axis (8) of the spark plug (1), an insulator (4) between the centre electrode (3) and the housing (2), and a two-limbed earth electrode (5), the limbs (9, 10) of said earth electrode being angled in relation to one another in a limb plane (E) which is located on the combustion-space side of the centre electrode (3) and is perpendicular to the centre axis (8), wherein the two ends of the earth electrode (5) are connected to the housing (2) at a connecting point (11, 12) in each case, wherein a first distance (6) between a combustion-space-side end of the housing (2) and the limb plane (E) is smaller than or equal to a second distance (7) between one of the connecting points (11, 12); and the centre axis (8), and/or wherein the earth electrode (5) is tapered in relation to the centre axis (8).
Description
Technical field
The present invention relates to a kind of according to the spark plug for internal combustion engine as described in the preamble of claim 1.
Background technology
Publication US 2010/0244651 A1 has described a kind of known spark plug, wherein, grounding electrode with the form both sides of bridge be welded on the end face of housing.Based on two mutual opposed pads, this grounding electrode bears larger thermal stress, and described thermal stress especially different thermal coefficient of expansion by electrode material and case material causes.In addition, in the situation that the grounding electrode of bridge shape cannot be realized the subsequent adjustment in bending by the described grounding electrode gap between contre electrode and grounding electrode.
Publication DE 101 55 404 A1 show the spark plug as described in the preamble according to claim 1.Here housing utilizes screw thread to retreat farly with respect to the end of the combustion chamber side of contre electrode.Therefore, grounding electrode comprises a branch long especially, that be parallel to the extension of spark plug axis.This known version has two critical shortcomings: grounding electrode larger and length shows for absorbing the hot larger surface of combustion chamber.With respect to this king-sized, absorb hot surface, known grounding electrode only has the especially little cross section at the tie point place between grounding electrode and housing.Only this especially little cross-sectional area can go out for the thermal conductance in from grounding electrode to housing.In the oxidation that absorbs the very large heat load that hot surface and the disadvantageous proportionate relationship between the cross section of heat outputting caused this known grounding electrode and therefore caused strengthening and shorter useful life.In addition, this known version has the very large shortcoming in the gap regulating between contre electrode and grounding electrode.In order to regulate this gap, must grounding electrode is crooked towards contre electrode after being connected with housing.This known grounding electrode has a long especially part that is parallel to spark plug axis.The described grounding electrode of bending with the opposed branch of contre electrode time, a disadvantageous bending moment is applied in the branch parallel with axis of grounding electrode.Therefore, in known arrangement, cannot regulate best gap.
Summary of the invention
Have claim 1 feature the invention describes a kind of spark plug, there is a grounding electrode, the useful life that it absorbs in its surface the least possible heat and therefore has very little oxidation and prolongation.In addition, spark plug according to the present invention has very little length, higher rigidity and following possibility, easily regulates the electrode spacing between contre electrode and grounding electrode.Spark plug according to the present invention is proposed to be used in having the stationary gas motor of precombustion chamber and uses, and described precombustion chamber has high chamber pressure and temperature.But in addition,, also suitable other application, for example, in motor vehicle.Described advantage realizes by means of a spark plug, it comprises that a housing is as contacting with the ground of internal combustion engine, one contre electrode of arranging along the axis of described spark plug in described housing, one insulator between described contre electrode and described housing, and the grounding electrode of a double side, its side is at a mutual crimp of the side plane perpendicular to described axis that is arranged in the combustion chamber side of described contre electrode, wherein, two ends of described grounding electrode are connected with described housing at each connecting portion place, wherein, in the end of the combustion chamber side of described housing and the first spacing between described side plane, be less than or equal to the second spacing between one of described connecting portion and described axis, and/or described grounding electrode is configured to be tapered towards described axis.What for the surface of described grounding electrode, play a decisive role is the girth of described grounding electrode.Also definition thus, the girth of described grounding electrode diminishes gradually towards described axis.Connecting portion between described grounding electrode and described housing is preferably configured as and is welded to connect.Described side plane and described the contre electrode in other words end of the combustion chamber side of described contre electrode are opposed.Between described grounding electrode in described side plane and described contre electrode, form according to the spark of spark plug of the present invention.Task of the present invention, the heat transmission reducing from described combustion chamber to described grounding electrode, solves with two kinds of different possibilities according to the present invention.According to the first solution, the end of the combustion chamber side of described housing is until the spacing of described side plane keeps as far as possible littlely.Therefore reduce thus the total surface of described grounding electrode and reduced the heat absorption of described grounding electrode.At the second, solve in flexible program and consider, described grounding electrode stands the maximum temperature in described combustion chamber in described side plane.Thus described grounding electrode is diminished gradually and constructed towards described axis.Therefore, two kinds solve flexible program is common, and they have all described the as far as possible little surface of described grounding electrode.But meanwhile, at grounding electrode described in two kinds of solution modification, be implemented as dual-side.These two sides are at this mutual crimp, thereby two connecting portions between described grounding electrode and described housing are not opposed.Thus can be by two sides be adjusted to the gap between described contre electrode and described grounding electrode exactly towards the simple bending of described grounding electrode.In the spacing described in the application's scope and angle, especially at described grounding electrode, for spark plug gap described in accurate adjustment, before being bent, measure, relate in other words for two sides to the spacing of projection and the data of angle in the side plane perpendicular to described axis.Described the first spacing is to measure between the end of the combustion chamber side of described housing and described side plane.Described grounding electrode has certain thickness in described side plane, and this thickness is correspondingly to measure at the center of described grounding electrode.Described the second spacing is from described axis to described connecting portion measurement.Described connecting portion also has certain thickness and measures at the center of described connecting portion in order to determine described the second spacing.
Dependent claims shows preferred improvement project of the present invention.
Especially preferably regulation, is configured to diminish gradually towards described axis at the girth of grounding electrode described in described side plane.Especially the temperature load at grounding electrode described in described side plane is maximum.Therefore, by diminishing gradually in this region, realized the reducing especially efficiently of temperature absorption of described grounding electrode.
Preferably stipulate, described grounding electrode is configured to metal wire, and its diameter is configured to diminish gradually towards described longitudinal axis.Especially described metal wire at the diameter at the thinnest position between 1mm and 5mm, especially between 1mm and 3mm.Particularly preferably use a kind of metal wire of the 2mm of having thickness.Stipulate as an alternative, described grounding electrode is configured to metallic plate, and it is configured to diminish gradually towards described longitudinal axis perpendicular to the measured width in described axis.Described metallic plate at the width at the narrowest position between 1mm and 6mm, especially between 2mm and 5mm, especially between 2.5mm and 3.5mm.Particularly preferably use a kind of metallic plate with 2.8 mm thickness.
In addition, also can use the metal wire that there is the metallic plate of constant width or there is constant thickness.In the case, described constant thickness or described constant width are preferably placed in above-mentioned value scope.
In addition preferably stipulate, the girth of described grounding electrode is configured to diminish gradually with at least 3%, especially at least 5%, especially at least 7% towards described axis.For example,, with 5% diminish gradually and mean therefore described grounding electrode has the width of 5mm and the thickness of 1mm (its girth in 12mm) and has the width of the 4.7mm under same thickness at a position near described axis at a position.Crooked position place between two sides of the grounding electrode of described dual-side, described width can increase again slightly, and wherein, described crooked position is preferably directly arranged in described grounding electrode top.
Regulation in particularly preferred embodiments, described two sides have each other 20 ° to 179 °, especially 30 ° to 179 °, especially 30 ° to 170 °, especially 60 ° to 150 ° and the angle of 90 ° preferably approximately in described side plane.By this angular range, guaranteed, two connecting portions between described grounding electrode and described housing are not direct opposed and have therefore realized all the time described grounding electrode towards the bending of described contre electrode, in order to regulate described spark plug gap.
Additionally, single or a plurality of penetrating parts of arbitrary shape can be set in described grounding electrode, in order to especially can affect in spark-plug body respiratory chamber or air-flow out therefrom.
In addition preferably stipulate, make two mutual single types of side of described grounding electrode.
In addition, described grounding electrode preferably includes a jut extending along the method for described axis between described housing and described side plane.This jut is welded on an end on described housing and at the place, the other end of described jut, has with another of the side of described grounding electrode and is welded to connect.Alternative, in described jut, also can make two ends of described grounding electrode towards described buckling of shells.
Particularly preferably, two sides of described grounding electrode are mutually crooked and described two ends are welded on the end face of described housing in manufacture process.The short especially execution mode of described grounding electrode has caused reducing of hot input.With respect to a standard grounding electrode, in electrode according to the present invention, temperature peak reduces with about 17%.The execution mode of described dual-side and the dual fastening rigidity having improved according to grounding electrode of the present invention on described housing end face.Suppressed largely thus the bending of the described grounding electrode that causes by air-flow and temperature stress in when operation.Like this, with respect to a standard grounding electrode, with about 300%, improved rigidity.
As ground electrode materials, preferably use a kind of low-alloyed nickel alloy.Like this, the electrode spacing between described contre electrode and described grounding electrode can create simply by the plastic deformation of described electrode.The low-alloyed nickel alloy using can be due to its ductility at room temperature without tearing ground plastic deformation.Preferably a noble metal solder side is coated on described grounding electrode.Heavy alloyed nickel alloy (chromium content >10%) is also suitable for according to grounding electrode of the present invention in principle.Certainly, like this with the higher adjusting of carrying out described electrode spacing that expends, because this heavy alloyed nickel alloy has a less ductility.
In order to be adjusted in noble metal solder side on described grounding electrode and the electrode spacing between described contre electrode, utilize a drift to be pressed to again on the side of described grounding electrode.Advantageously when described grounding electrode is welded on described housing, select a larger electrode spacing for this reason, after it, by compressing again, be reduced in desirable spacing.
According to the grounding electrode of dual-side of the present invention, preferably by bent metal wire or by stamping-out from a metal plate and belt, out make.Described grounding electrode can be smooth or by a shape orientation or reversely carry out predeformation in the spark plug axis of symmetry arbitrarily before welding.Two ends of described grounding electrode are soldered on the end face of spark-plug body, wherein, use resistance welding technology or laser welding process.On described side, advantageously with respect to described contre electrode, apply the noble metal solder side of an arbitrary shape, for improving the life-span.Described noble metal solder side fastening can be preferably fetches and carries out by means of resistance welded or Laser Welding.
Accompanying drawing explanation
Preferably with reference to accompanying drawing, describe five embodiment of the present invention in detail below.Shown in the drawings:
Fig. 1 show according to the first embodiment according to the end view of spark plug of the present invention,
Fig. 2 show according to the first embodiment according to the vertical view of spark plug of the present invention,
Fig. 3 show according to the second embodiment according to the vertical view of spark plug of the present invention,
Fig. 4 show according to the 3rd embodiment according to the vertical view of spark plug of the present invention,
Fig. 5 show according to the 4th embodiment according to the end view of spark plug of the present invention,
Fig. 6 show according to the 5th embodiment according to the end view of spark plug of the present invention.
Embodiment
With reference to Fig. 1 and 2, the first embodiment according to spark plug 1 of the present invention has been described.
This spark plug 1 comprises that a housing 2 is as contacting with the ground of an internal combustion engine.Described housing 2 has one for described spark plug 1 being screwed into the screw thread of described internal combustion engine.A contre electrode 3 is arranged in axis 8 along described spark plug 1 in described housing 2.Between described contre electrode 3 and described housing 2, there is an insulator 4.
On described housing 2, arrange a grounding electrode 5.This grounding electrode 5 comprises a jut 14, and it is parallel to described axis 8 and extends.From described jut 14, described grounding electrode 5 extends with respect to described contre electrode 3 and perpendicular to described axis 8 in so-called side plane E.Described grounding electrode 5 at two connecting portions 11,12(referring to Fig. 2) locate to be connected with described housing 2.
Between the end of the combustion chamber side of described housing 2 and described side plane E, measure one first spacing 6.As shown in Figure 1, described grounding electrode 5 has certain thickness in described side plane E, and this thickness is correspondingly measured at the center of described grounding electrode 5.From described axis 8 to described connecting portion 11,12 or until described jut 14 measurement one second spacing 7.Described jut 14 has certain thickness and equally in order to determine that described the second spacing 7 measures at described jut 14 center.
Described spark plug is so to construct, and described the first spacing 6 is less than described the second spacing 7.Especially described the first spacing 6 is with at least 10%, be especially less than described the second spacing 7 with at least 20%.Guaranteed thus, the length of described grounding electrode 5 and the therefore surface of described grounding electrode 5 are reduced to as far as possible little, thus the as far as possible little heat transmission occurring from described combustion chamber to described grounding electrode 5.
Fig. 2 shows according to the vertical view of the combustion chamber side of the spark plug 1 of the first embodiment.As visible here, described grounding electrode 5 comprises a first side 9 and a second side 10 at described side plane E.Described grounding electrode 5 is made from the plate of a stamping-out.Described two sides 9,10 have the angle α of one 90 ° mutually.Described first side 1 or the jut 14 on described first side 1 are welded to connect (connecting portion) 11 by means of first and are connected with described housing 2.Described second side 10 or the jut 14 on described second side 10 are welded to connect 12(connecting portion by means of second) be connected with described housing 2.
Preferably, described two sides 9,10 directly converge to together in other words via described contre electrode 3 on described axis 8.Described two sides 9,10 have a unified width b who measures perpendicular to described axis 8 in the first embodiment.
The second embodiment of described spark plug 1 is described with reference to Fig. 3.In identical or function, identical parts represent with identical Reference numeral in all embodiments.
As shown in FIG. 3, the width of described two sides 9,10 reduces towards described contre electrode 3 in other words towards described axis 7.Shown is minimum width b.
With reference to two the first embodiment, can explain preferably two Important Thought of the present invention.Important Thought of the present invention is, the as far as possible little surface of described grounding electrode causes the as far as possible little temperature absorption of described grounding electrode 5, avoided thus the oxidation of described grounding electrode 5 and therefore extended running time.In the first spacing 6 described in the first embodiment, with respect to described the second spacing 7, construct relatively littlely.In a second embodiment, described grounding electrode 5, especially in the hottest region, narrows down at 8 places, described axis, has reduced equally thus the surface of described contre electrode 5.But meanwhile, spark plug 1 according to the present invention must can be realized the adjusting in described motor gap.Therefore in two embodiment, use grounding electrodes 5 crimp, two sides.The grounding electrode 5 of this crimp can be crooked along the direction of described axis 8 particularly well.
Fig. 4 shows the 3rd embodiment according to spark plug 1 of the present invention.In identical or function, identical parts represent with identical Reference numeral in all embodiments.According to Fig. 4, the angle [alpha] in the 3rd embodiment between two sides 9,10 is about 115 °.In addition, in each in described side 9,10, construct respectively one and take the penetrating part 13 that cylindrical recess is form.This penetrating part 13 is used herein to the air-flow having influence in spark-plug body respiratory chamber.
Fig. 5 shows the 4th embodiment of spark plug 1.In identical or function, identical parts represent with identical Reference numeral in all embodiments.In the 4th embodiment, the complete single type of described grounding electrode 1 ground is implemented, thereby needn't adopt as the jut 14 in the first embodiment again.For this reason, 90 ° of bendings are sentenced at a crooked position 15 in the end of described grounding electrode 5.Like this, described end and described housing 2 are welded to connect position 11,12 places welding described.Described the first spacing 6 is selected again to such an extent that be less than described the second spacing 7 at this, as in the first embodiment.
Fig. 6 shows the 5th embodiment of spark plug 1.In identical or function, identical parts represent with identical Reference numeral in all embodiments.
In Fig. 6, amplify the end of the combustion chamber side that shows spark plug 1.At housing described in Fig. 62, in combustion chamber side, from described contre electrode 3, stretch out.The end of the combustion chamber side of described housing 2 is taken apart and is illustrated in Fig. 6, thus visible described contre electrode 3.Described grounding electrode 5 is configured to the member of a plane in the 5th embodiment.For described housing 2 is stretched out from described contre electrode 3 in combustion chamber side, the grounding electrode of described plane 5 can be welded direct on the end of described housing 2.Shown is the second connecting portion 12 between described housing 2 and described grounding electrode 5.Described the first connecting portion 11 stashes for the purpose of general view.Described the first spacing 6 is reduced to a half thickness that is parallel to the measured described grounding electrode 5 in described axis 8 in this embodiment.
In all embodiment, can use according to the different shape of the grounding electrode 5 of Fig. 2 to 4.
Claims (10)
1. spark plug (1), comprising:
One housing (2) conduct contacts with the ground of an internal combustion engine,
One contre electrode (3) of arranging along the axis (8) of described spark plug (1) in described housing (2),
One insulator (4) between described contre electrode (3) and described housing (2), and
The grounding electrode of one double side (5), its side (9,10) is at a mutual crimp of the side plane (E) perpendicular to described axis (8) that is arranged in the combustion chamber side of described contre electrode (3),
Wherein, two ends of described grounding electrode (5) are connected with described housing (2) with each connecting portion (11,12), it is characterized in that,
End and the first spacing (6) between described side plane (E) in the combustion chamber side of described housing (2) are less than or equal to the second spacing (7) between one of described connecting portion (11,12) and described axis (8), and/or
Described grounding electrode (5) is configured to diminish gradually towards described axis (8).
2. according to spark plug claimed in claim 1, it is characterized in that, at the girth of grounding electrode (5) described in described side plane (E), towards described axis (8), diminish gradually.
3. according to spark plug claimed in claim 2, it is characterized in that, described grounding electrode (5) is configured to metal wire, its diameter is configured to diminish gradually towards described axis (8), or described grounding electrode (5) is configured to metallic plate, its width (b) of measuring perpendicular to described axis (8) is configured to diminish gradually towards described axis (8).
4. according to spark plug claimed in claim 3, it is characterized in that, described metal wire at the diameter at the thinnest position between 1mm and 5mm, especially between 1mm and 3mm, or described metallic plate at the width (b) at the narrowest position between 1mm and 6mm, especially between 2mm and 5mm.
5. according to spark plug in any one of the preceding claims wherein, it is characterized in that, the girth of described grounding electrode (5) is configured to diminish gradually with at least 3%, especially at least 5%, especially at least 7% towards described axis (8).
6. according to spark plug in any one of the preceding claims wherein, it is characterized in that, described two sides (9,10) have each other from 20 ° to 179 ° in described side plane (E), especially 30 ° to 179 °, especially 30 ° to 170 °, especially the angle of 60 ° to 150 ° (α).
7. according to spark plug in any one of the preceding claims wherein, it is characterized in that at least one penetrating part (13) in the grounding electrode (5) in described side plane (E).
8. according to spark plug in any one of the preceding claims wherein, it is characterized in that, two sides (9,10) of described grounding electrode are made single type.
9. according to the spark plug described in any one in claim 1 to 7, it is characterized in that the jut (14) that at least one direction along described axis (8) between described housing (2) and described side (9,10) is extended.
10. according to spark plug in any one of the preceding claims wherein, it is characterized in that, two ends of described grounding electrode (5) are towards described housing (2) bending.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011080356.4 | 2011-08-03 | ||
| DE201110080356 DE102011080356A1 (en) | 2011-08-03 | 2011-08-03 | spark plug |
| PCT/EP2012/060365 WO2013017310A1 (en) | 2011-08-03 | 2012-06-01 | Spark plug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103718399A true CN103718399A (en) | 2014-04-09 |
| CN103718399B CN103718399B (en) | 2016-08-17 |
Family
ID=46208032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280038686.2A Expired - Fee Related CN103718399B (en) | 2011-08-03 | 2012-06-01 | Spark plug |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9124076B2 (en) |
| CN (1) | CN103718399B (en) |
| DE (1) | DE102011080356A1 (en) |
| RU (1) | RU2596622C2 (en) |
| WO (1) | WO2013017310A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119145A (en) * | 2015-08-19 | 2015-12-02 | 张蝶儿 | Spark plug production technique |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5610470A (en) * | 1993-07-12 | 1997-03-11 | Wofsey; David | Spark plug for an internal combustion engine |
| EP1311041A2 (en) * | 2001-11-10 | 2003-05-14 | Robert Bosch Gmbh | Spark plug and combustion chamber arrangement |
| US20040041505A1 (en) * | 2001-06-15 | 2004-03-04 | Jochen Fischer | Spark plug |
| US20050174025A1 (en) * | 2004-02-06 | 2005-08-11 | Denso Corporation | Spark plug designed to ensure high strength of electrode joint and production method thereof |
| CN201421949Y (en) * | 2009-06-06 | 2010-03-10 | 李忠尧 | Spark plug using center electrode with a plurality of ignition points |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5194034A (en) * | 1975-02-17 | 1976-08-18 | ||
| EP0134355A1 (en) | 1983-09-05 | 1985-03-20 | Ying-Chung Chang | Bridge electrode type of spark plug |
| CZ282875B6 (en) * | 1994-12-23 | 1997-11-12 | BRISK Tábor a. s. | Ignition plug |
| EA012859B1 (en) * | 2008-05-04 | 2009-12-30 | Сергей Леонидович Павловский | Spark-plug for internal combustion engine |
| WO2010117780A2 (en) | 2009-03-31 | 2010-10-14 | Federal-Mogul Ignition Company | Spark ignition device with bridging ground electrode and method of construction thereof1/3 |
-
2011
- 2011-08-03 DE DE201110080356 patent/DE102011080356A1/en not_active Withdrawn
-
2012
- 2012-06-01 CN CN201280038686.2A patent/CN103718399B/en not_active Expired - Fee Related
- 2012-06-01 WO PCT/EP2012/060365 patent/WO2013017310A1/en active Application Filing
- 2012-06-01 RU RU2014107714/07A patent/RU2596622C2/en active
- 2012-06-01 US US14/235,167 patent/US9124076B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5610470A (en) * | 1993-07-12 | 1997-03-11 | Wofsey; David | Spark plug for an internal combustion engine |
| US20040041505A1 (en) * | 2001-06-15 | 2004-03-04 | Jochen Fischer | Spark plug |
| EP1311041A2 (en) * | 2001-11-10 | 2003-05-14 | Robert Bosch Gmbh | Spark plug and combustion chamber arrangement |
| US20050174025A1 (en) * | 2004-02-06 | 2005-08-11 | Denso Corporation | Spark plug designed to ensure high strength of electrode joint and production method thereof |
| CN201421949Y (en) * | 2009-06-06 | 2010-03-10 | 李忠尧 | Spark plug using center electrode with a plurality of ignition points |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119145A (en) * | 2015-08-19 | 2015-12-02 | 张蝶儿 | Spark plug production technique |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103718399B (en) | 2016-08-17 |
| US20140246972A1 (en) | 2014-09-04 |
| US9124076B2 (en) | 2015-09-01 |
| DE102011080356A1 (en) | 2013-02-07 |
| WO2013017310A1 (en) | 2013-02-07 |
| RU2014107714A (en) | 2015-09-10 |
| RU2596622C2 (en) | 2016-09-10 |
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